php/external/Zend/Feed/Entry/Atom.php - shindig - Git at Google

 <?php

 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Feed
  * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id: Atom.php 8064 2008-02-16 10:58:39Z thomas $
  */

 /**
  * @see Zend_Feed_Entry_Abstract
  */
 require_once 'external/Zend/Feed/Entry/Abstract.php';

 /**
  * Concrete class for working with Atom entries.
  *
  * @category   Zend
  * @package    Zend_Feed
  * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Feed_Entry_Atom extends Zend_Feed_Entry_Abstract {
   /**
    * Root XML element for Atom entries.
    *
    * @var string
    */
   protected $_rootElement = 'entry';

   /**
    * Root namespace for Atom entries.
    *
    * @var string
    */
   protected $_rootNamespace = 'atom';

   /**
    * Delete an atom entry.
    *
    * Delete tries to delete this entry from its feed. If the entry
    * does not contain a link rel="edit", we throw an error (either
    * the entry does not yet exist or this is not an editable
    * feed). If we have a link rel="edit", we do the empty-body
    * HTTP DELETE to that URI and check for a response of 2xx.
    * Usually the response would be 204 No Content, but the Atom
    * Publishing Protocol permits it to be 200 OK.
    *
    * @return void
    * @throws Zend_Feed_Exception
    */
   public function delete() {
     // Look for link rel="edit" in the entry object.
     $deleteUri = $this->link('edit');
     if (! $deleteUri) {
       /**
        * @see Zend_Feed_Exception
        */
       require_once 'external/Zend/Feed/Exception.php';
       throw new Zend_Feed_Exception('Cannot delete entry; no link rel="edit" is present.');
     }

     // DELETE
     $client = Zend_Feed::getHttpClient();
     do {
       $client->setUri($deleteUri);
       if (Zend_Feed::getHttpMethodOverride()) {
         $client->setHeader('X-HTTP-Method-Override', 'DELETE');
         $response = $client->request('POST');
       } else {
         $response = $client->request('DELETE');
       }
       $httpStatus = $response->getStatus();
       switch ((int)$httpStatus / 100) {
         // Success
         case 2:
           return true;
         // Redirect
         case 3:
           $deleteUri = $response->getHeader('Location');
           continue;
         // Error
         default:
           /**
            * @see Zend_Feed_Exception
            */
           require_once 'external/Zend/Feed/Exception.php';
           throw new Zend_Feed_Exception("Expected response code 2xx, got $httpStatus");
       }
     } while (true);
   }

   /**
    * Save a new or updated Atom entry.
    *
    * Save is used to either create new entries or to save changes to
    * existing ones. If we have a link rel="edit", we are changing
    * an existing entry. In this case we re-serialize the entry and
    * PUT it to the edit URI, checking for a 200 OK result.
    *
    * For posting new entries, you must specify the $postUri
    * parameter to save() to tell the object where to post itself.
    * We use $postUri and POST the serialized entry there, checking
    * for a 201 Created response. If the insert is successful, we
    * then parse the response from the POST to get any values that
    * the server has generated: an id, an updated time, and its new
    * link rel="edit".
    *
    * @param  string $postUri Location to POST for creating new entries.
    * @return void
    * @throws Zend_Feed_Exception
    */
   public function save($postUri = null) {
     if ($this->id()) {
       // If id is set, look for link rel="edit" in the
       // entry object and PUT.
       $editUri = $this->link('edit');
       if (! $editUri) {
         /**
          * @see Zend_Feed_Exception
          */
         require_once 'external/Zend/Feed/Exception.php';
         throw new Zend_Feed_Exception('Cannot edit entry; no link rel="edit" is present.');
       }

       $client = Zend_Feed::getHttpClient();
       $client->setUri($editUri);
       if (Zend_Feed::getHttpMethodOverride()) {
         $client->setHeaders(array('X-HTTP-Method-Override: PUT',
             'Content-Type: application/atom+xml'));
         $client->setRawData($this->saveXML());
         $response = $client->request('POST');
       } else {
         $client->setHeaders('Content-Type', 'application/atom+xml');
         $client->setRawData($this->saveXML());
         $response = $client->request('PUT');
       }
       if ($response->getStatus() !== 200) {
         /**
          * @see Zend_Feed_Exception
          */
         require_once 'external/Zend/Feed/Exception.php';
         throw new Zend_Feed_Exception('Expected response code 200, got ' . $response->getStatus());
       }
     } else {
       if ($postUri === null) {
         /**
          * @see Zend_Feed_Exception
          */
         require_once 'external/Zend/Feed/Exception.php';
         throw new Zend_Feed_Exception('PostURI must be specified to save new entries.');
       }
       $client = Zend_Feed::getHttpClient();
       $client->setUri($postUri);
       $client->setRawData($this->saveXML());
       $response = $client->request('POST');

       if ($response->getStatus() !== 201) {
         /**
          * @see Zend_Feed_Exception
          */
         require_once 'external/Zend/Feed/Exception.php';
         throw new Zend_Feed_Exception('Expected response code 201, got ' . $response->getStatus());
       }
     }

     // Update internal properties using $client->responseBody;
     @ini_set('track_errors', 1);
     $newEntry = @DOMDocument::loadXML($response->getBody());
     @ini_restore('track_errors');

     if (! $newEntry) {
       // prevent the class to generate an undefined variable notice (ZF-2590)
       if (! isset($php_errormsg)) {
         if (function_exists('xdebug_is_enabled')) {
           $php_errormsg = '(error message not available, when XDebug is running)';
         } else {
           $php_errormsg = '(error message not available)';
         }
       }

       /**
        * @see Zend_Feed_Exception
        */
       require_once 'external/Zend/Feed/Exception.php';
       throw new Zend_Feed_Exception('XML cannot be parsed: ' . $php_errormsg);
     }

     $newEntry = $newEntry->getElementsByTagName($this->_rootElement)->item(0);
     if (! $newEntry) {
       /**
        * @see Zend_Feed_Exception
        */
       require_once 'external/Zend/Feed/Exception.php';
       throw new Zend_Feed_Exception('No root <feed> element found in server response:' . "\n\n" . $client->responseBody);
     }

     if ($this->_element->parentNode) {
       $oldElement = $this->_element;
       $this->_element = $oldElement->ownerDocument->importNode($newEntry, true);
       $oldElement->parentNode->replaceChild($this->_element, $oldElement);
     } else {
       $this->_element = $newEntry;
     }
   }

   /**
    * Easy access to <link> tags keyed by "rel" attributes.
    *
    * If $elt->link() is called with no arguments, we will attempt to
    * return the value of the <link> tag(s) like all other
    * method-syntax attribute access. If an argument is passed to
    * link(), however, then we will return the "href" value of the
    * first <link> tag that has a "rel" attribute matching $rel:
    *
    * $elt->link(): returns the value of the link tag.
    * $elt->link('self'): returns the href from the first <link rel="self"> in the entry.
    *
    * @param  string $rel The "rel" attribute to look for.
    * @return mixed
    */
   public function link($rel = null) {
     if ($rel === null) {
       return parent::__call('link', null);
     }

     // index link tags by their "rel" attribute.
     $links = parent::__get('link');
     if (! is_array($links)) {
       if ($links instanceof Zend_Feed_Element) {
         $links = array($links);
       } else {
         return $links;
       }
     }

     foreach ($links as $link) {
       if (empty($link['rel'])) {
         continue;
       }
       if ($rel == $link['rel']) {
         return $link['href'];
       }
     }

     return null;
   }

 }
	<?php

	/**
	* Zend Framework
	*
	* LICENSE
	*
	* This source file is subject to the new BSD license that is bundled
	* with this package in the file LICENSE.txt.
	* It is also available through the world-wide-web at this URL:
	* http://framework.zend.com/license/new-bsd
	* If you did not receive a copy of the license and are unable to
	* obtain it through the world-wide-web, please send an email
	* to license@zend.com so we can send you a copy immediately.
	*
	* @category Zend
	* @package Zend_Feed
	* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
	* @license http://framework.zend.com/license/new-bsd New BSD License
	* @version $Id: Atom.php 8064 2008-02-16 10:58:39Z thomas $
	*/

	/**
	* @see Zend_Feed_Entry_Abstract
	*/
	require_once 'external/Zend/Feed/Entry/Abstract.php';

	/**
	* Concrete class for working with Atom entries.
	*
	* @category Zend
	* @package Zend_Feed
	* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
	* @license http://framework.zend.com/license/new-bsd New BSD License
	*/
	class Zend_Feed_Entry_Atom extends Zend_Feed_Entry_Abstract {
	/**
	* Root XML element for Atom entries.
	*
	* @var string
	*/
	protected $_rootElement = 'entry';

	/**
	* Root namespace for Atom entries.
	*
	* @var string
	*/
	protected $_rootNamespace = 'atom';

	/**
	* Delete an atom entry.
	*
	* Delete tries to delete this entry from its feed. If the entry
	* does not contain a link rel="edit", we throw an error (either
	* the entry does not yet exist or this is not an editable
	* feed). If we have a link rel="edit", we do the empty-body
	* HTTP DELETE to that URI and check for a response of 2xx.
	* Usually the response would be 204 No Content, but the Atom
	* Publishing Protocol permits it to be 200 OK.
	*
	* @return void
	* @throws Zend_Feed_Exception
	*/
	public function delete() {
	// Look for link rel="edit" in the entry object.
	$deleteUri = $this->link('edit');
	if (! $deleteUri) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('Cannot delete entry; no link rel="edit" is present.');
	}

	// DELETE
	$client = Zend_Feed::getHttpClient();
	do {
	$client->setUri($deleteUri);
	if (Zend_Feed::getHttpMethodOverride()) {
	$client->setHeader('X-HTTP-Method-Override', 'DELETE');
	$response = $client->request('POST');
	} else {
	$response = $client->request('DELETE');
	}
	$httpStatus = $response->getStatus();
	switch ((int)$httpStatus / 100) {
	// Success
	case 2:
	return true;
	// Redirect
	case 3:
	$deleteUri = $response->getHeader('Location');
	continue;
	// Error
	default:
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception("Expected response code 2xx, got $httpStatus");
	}
	} while (true);
	}

	/**
	* Save a new or updated Atom entry.
	*
	* Save is used to either create new entries or to save changes to
	* existing ones. If we have a link rel="edit", we are changing
	* an existing entry. In this case we re-serialize the entry and
	* PUT it to the edit URI, checking for a 200 OK result.
	*
	* For posting new entries, you must specify the $postUri
	* parameter to save() to tell the object where to post itself.
	* We use $postUri and POST the serialized entry there, checking
	* for a 201 Created response. If the insert is successful, we
	* then parse the response from the POST to get any values that
	* the server has generated: an id, an updated time, and its new
	* link rel="edit".
	*
	* @param string $postUri Location to POST for creating new entries.
	* @return void
	* @throws Zend_Feed_Exception
	*/
	public function save($postUri = null) {
	if ($this->id()) {
	// If id is set, look for link rel="edit" in the
	// entry object and PUT.
	$editUri = $this->link('edit');
	if (! $editUri) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('Cannot edit entry; no link rel="edit" is present.');
	}

	$client = Zend_Feed::getHttpClient();
	$client->setUri($editUri);
	if (Zend_Feed::getHttpMethodOverride()) {
	$client->setHeaders(array('X-HTTP-Method-Override: PUT',
	'Content-Type: application/atom+xml'));
	$client->setRawData($this->saveXML());
	$response = $client->request('POST');
	} else {
	$client->setHeaders('Content-Type', 'application/atom+xml');
	$client->setRawData($this->saveXML());
	$response = $client->request('PUT');
	}
	if ($response->getStatus() !== 200) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('Expected response code 200, got ' . $response->getStatus());
	}
	} else {
	if ($postUri === null) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('PostURI must be specified to save new entries.');
	}
	$client = Zend_Feed::getHttpClient();
	$client->setUri($postUri);
	$client->setRawData($this->saveXML());
	$response = $client->request('POST');

	if ($response->getStatus() !== 201) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('Expected response code 201, got ' . $response->getStatus());
	}
	}

	// Update internal properties using $client->responseBody;
	@ini_set('track_errors', 1);
	$newEntry = @DOMDocument::loadXML($response->getBody());
	@ini_restore('track_errors');

	if (! $newEntry) {
	// prevent the class to generate an undefined variable notice (ZF-2590)
	if (! isset($php_errormsg)) {
	if (function_exists('xdebug_is_enabled')) {
	$php_errormsg = '(error message not available, when XDebug is running)';
	} else {
	$php_errormsg = '(error message not available)';
	}
	}

	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('XML cannot be parsed: ' . $php_errormsg);
	}

	$newEntry = $newEntry->getElementsByTagName($this->_rootElement)->item(0);
	if (! $newEntry) {
	/**
	* @see Zend_Feed_Exception
	*/
	require_once 'external/Zend/Feed/Exception.php';
	throw new Zend_Feed_Exception('No root <feed> element found in server response:' . "\n\n" . $client->responseBody);
	}

	if ($this->_element->parentNode) {
	$oldElement = $this->_element;
	$this->_element = $oldElement->ownerDocument->importNode($newEntry, true);
	$oldElement->parentNode->replaceChild($this->_element, $oldElement);
	} else {
	$this->_element = $newEntry;
	}
	}

	/**
	* Easy access to <link> tags keyed by "rel" attributes.
	*
	* If $elt->link() is called with no arguments, we will attempt to
	* return the value of the <link> tag(s) like all other
	* method-syntax attribute access. If an argument is passed to
	* link(), however, then we will return the "href" value of the
	* first <link> tag that has a "rel" attribute matching $rel:
	*
	* $elt->link(): returns the value of the link tag.
	* $elt->link('self'): returns the href from the first <link rel="self"> in the entry.
	*
	* @param string $rel The "rel" attribute to look for.
	* @return mixed
	*/
	public function link($rel = null) {
	if ($rel === null) {
	return parent::__call('link', null);
	}

	// index link tags by their "rel" attribute.
	$links = parent::__get('link');
	if (! is_array($links)) {
	if ($links instanceof Zend_Feed_Element) {
	$links = array($links);
	} else {
	return $links;
	}
	}

	foreach ($links as $link) {
	if (empty($link['rel'])) {
	continue;
	}
	if ($rel == $link['rel']) {
	return $link['href'];
	}
	}

	return null;
	}

	}